Belfast weather in August (County Antrim, Ireland)

Planning a trip to Belfast in August? Wondering if it's an optimal time for a visit? This page provides detailed information on the weather conditions for that month.

In August, Belfast generally has pleasant temperatures and moderate rainfall. August falls within the summer season. Daytime temperatures hover around 19°C, while nights can cool down to about 12°C.

Belfast in August usually receives moderate rainfall, averaging around 91 mm for the month. It is the wettest month of the year, so an umbrella might come in handy. When we look at the climate data from the last 30 years, we can expect around 19 days of rain.

The area experiences a moderate amount of sunshine, with approximately 139 hours of sunlight expected. This makes it neither too gloomy nor overly bright.

If your ideal day consists of dry skies and moderate temperatures July generally stands out with the best circumstances. While January, February and December tend to showcase less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized Belfast climate page with graphs.

 

Belfast, monthly averages in August

Min Temperature 12°C  

Max Temperature 19°C  

Water Temperature 13°C  

Chance of Rain 64%  

Precipitation 91 mm  

Rainy days 19 days  

Humidity 89%  

Windspeed 14 km/h  

Sunshine 139 hours  

Percentage Sunshine 29%  

Where to go in Ireland in August

Find out more about the weather in Ireland in August and which places have the best weather conditions in this month.

Weather conditions Weather

Temperatures

Precipitation

Map not visible? Whoops sorry! Please refresh the page.

Legend perfect weather pleasant tolerable unpleasant poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in Belfast in August?

For visitors traveling to Belfast, we recommend wearing layers. So maybe a skirt, t-shirt, shorts for during the day and jeans and a warm jacket for some days and evenings. Bring a rain jacket in case it rains during your stay. Plan on layering your clothes. With a water temperature of around 13°C there is no need to bring your swimwear.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do in August.

Swimming

6/10

Cycling

9/10

Walking

9/10

Camping

8/10

Outdoor sports

9/10

Interested in more climate information?

Weather and Climate provides you with all the information you need about the climate in Belfast.

Our site offers climate and forecast data for every country in the world. Are you going to Ireland? On this website you can find historical weather averages for many cities in Ireland. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.